使用deployment部署lnmp

LNMP是Linux + Nginx + MySQL + PHP的缩写，是一种常见的Web服务器架构。下面是使用deployment部署LNMP的步骤：

1. 创建一个deployment对象

apiVersion: apps/v1
kind: Deployment
metadata:
  name: lnmp
spec:
  selector:
    matchLabels:
      app: lnmp
  replicas: 2
  template:
    metadata:
      labels:
        app: lnmp
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80
      - name: php-fpm
        image: php:latest-fpm
        ports:
        - containerPort: 9000

2. 创建一个service对象

apiVersion: v1
kind: Service
metadata:
  name: lnmp
spec:
  selector:
    app: lnmp
  ports:
  - name: http
    port: 80
    targetPort: 80
  - name: php
    port: 9000
    targetPort: 9000

3. 创建一个存储MySQL密码的Secret对象

apiVersion: v1
kind: Secret
metadata:
  name: mysql-secret
type: Opaque
data:
  password: base64-encoded-password

4. 创建一个deployment对象来启动MySQL容器

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql
spec:
  selector:
    matchLabels:
      app: mysql
  replicas: 1
  template:
    metadata:
      labels:
        app: mysql
    spec:
      containers:
      - name: mysql
        image: mysql:5.7
        env:
        - name: MYSQL_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mysql-secret
              key: password
        ports:
        - containerPort: 3306
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pvc

5. 创建一个PersistentVolumeClaim对象来提供持久化存储

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi

6. 创建一个service对象来暴露MySQL服务

apiVersion: v1
kind: Service
metadata:
  name: mysql
spec:
  selector:
    app: mysql
  ports:
  - name: mysql
    port: 3306
    targetPort: 3306

以上步骤完成后，LNMP架构就可以在Kubernetes集群中运行了。需要注意的是，以上示例中涉及到的镜像、端口号、存储大小等各项参数需要根据实际情况进行调整。